OpenTechnical

OT-2026-000022730

Publication integrity record

Foam pad vacuum gripper, plant vacuum fed, sustained blow-off before set-down, on a tool changer

This page is the evidence record. It changes as evidence arrives: a trusted timestamp, an independent retrieval, a custody deposit. The disclosure itself (/p/OT-2026-000022730) never changes.

Identity and time

Publication numberOT-2026-000022730 · never reused
Internal UUID01a0ae70-46e9-7dd6-aeb5-369f74040756 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:16:28.929798Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000022730
StatusPUBLIC

Content hashes

Canonical text2f58d5d8a1e46c738e83972c93c42112fdafa3518f869e7d931c97e36189fb92
Markdown15977bdbbd60128d1c1c53640ad9ca8c625e021f38a338c27300bd3c19bbc787
PDF
Publication page529169e992e1208d1f5e381cf435b876016f4eacdb1107a7f2c0c42acc5fdce8
Manifest897c374d487a89ccfc0463d5b67a1241a83456dc5c0616606cfb40c720614f0d

SHA-256, lowercase hex, over the exact bytes of each published file. Every figure is hashed individually in the manifest.

Manifest signature

AlgorithmEd25519 · key OT-SIGN-2026-01 · Verified
Signaturecd3hfRuTQr7joCq2WUi4AGcd2OqIUZMb9Ydo6jxW9DSzPIBZupZHkf4uDMqJYpi9DYQWnHZHVozcaw8wKuKmAQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T11:52:14.056523ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022730
observed 529169e992e1208d1f5e381cf435b876...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:52:14.040002ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022730/manifest.json
observed 897c374d487a89ccfc0463d5b67a1241...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:52:14.021477ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022730/publication.md
observed 15977bdbbd60128d1c1c53640ad9ca8c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:52:14.004266ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022730/publication.txt
observed 2f58d5d8a1e46c738e83972c93c42112...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139

Requested from infrastructure separate from the publication system, over the public internet, with no credential. A MATCH means an ordinary internet client could fetch the publication and received exactly the bytes recorded above.

Independent archive

External archivePending Canonical URLs are submitted to an independent archive in batches.

A capture held by an outside archive is evidence that does not depend on OpenTechnical continuing to exist. It supplements the records above; it does not replace them.

Third-party custody

Custody packagePending Custody packages are produced weekly.